The correct answer is answer C ("To condemn the policies of this predecessor").
In 1956, Nikita S. Khrushchev (a very important figure for the Soviet Union) gave his infamous speech at a closed congress session of the Communist Party. His purpose was to destroy the figure of Stalin by denouncing the abuse of power from the dictator (criticizing his policies of wide-spread mass terror in detail) and also condemn is ineffectiveness at defending the Union from the German Invasion.
Hope this is helpful to you!
On November 27, 1095, Pope Urban II makes perhaps the most influential speech of the Middle Ages, giving rise to the Crusades by calling all Christians in Europe to war against Muslims in order to reclaim the Holy Land, with a cry of “Deus vult!” or “God wills it!”
Martin Luther King Jr.'s letter was an answer to a message from a group of clergy in Birmingham in 1963. In their “Call for Unity,” the clergy appealed for restraint and “common sense,” and a withdrawal of support for the civil rights demonstrations.
They showed them how to hunt. Colonists actually raided them and colonists thrived from John Rolfe bringing the tobacco seeds
It would be an "effective secondary source document" that best describes a chart developed 20 years after a historical event, since the information as had time to "settle"--although of course this doesn't automatically mean that the chart is "effective". hope this helps :)
